I often switch back and forth between my MacBook (Lion) and my Windows 7 laptop. When I create a new prayer using the Mac it creates a new prayer list and names it Bill's prayer list 2.
Another feature that does not work the same between Mac and Windows version is reading my prayers from the task bar I must move the cursor when using the Mac version to show the next prayer after clicking the one just read. The Windows version displays the next prayer without needing to move the cursor.